To be honest, this objective was far from exciting when I opened my pack. But last night I got to see it in action and it was a beautiful thing. I actually got two copies out from the beginning. This saved me twice. Once, he tried to shield a unit using Our Most Desperate Hour, but couldn't pay the cost, so I was able to destroy that unit. Later, he tried to play Jedi Mind Trick on my defender, but again, couldn't pay for it.
I'll admit I was lucky. I think the success was because it was my opponent's first time playing against it. There were several times when he could have damaged one of them, but chose Take Them Prisoner instead. My feeling is that the longer this set is out, the more aggressively a DS player will have to defend it.